noun

• A person or object that carries someone or something else.
• (science fiction, by extension) A starship designed to carry starfighters
• A carrier pigeon.
• A person or company in the business of shipping freight.
• A signal such as radio, sound, or light that is modulated to transmit information.
• (telecommunications) A mobile network operator; wireless carrier.
• (aviation) A certified airline.
• (engineering) That which drives or carries.
• A piece which communicates to an object in a lathe the motion of the faceplate; a lathe dog.
• A spool holder or bobbin holder in a braiding machine.
• A movable piece in magazine guns which transfers the cartridge to a position from which it can be thrust into the barrel.
• A movable piece in a planetary gear train.
• (especially automotive) Part of a differential gear assembly that holds gears and their bearings.
• (chemistry) A catalyst or other intermediary in a chemical reaction.
• (genetics, pathology) A person or other organism that has a genetic trait, mutation or infection liable to cause a disease, but displays no symptoms.
• (physics, electronics) A charge carrier.
• (art, manufacturing) A liquid or gas used as a medium for another substance.
• A Northern Athabaskan language spoken in Canada. Sometimes considered to be three separate languages: Southern Carrier, Northern Carrier and Central Carrier.
• Synonym of English Carrier
• A surname.
• A small town in Garfield County, Oklahoma, United States; from the surname.
• Ellipsis of aircraft carrier. [A warship designed to carry aircraft, serving as a seagoing air base, with a deck on which aircraft can be launched and landed.]